Yankees fan wears tinfoil hat to keep rain (or possibly aliens) away

As you may have heard, it got a little damp at Yankee Stadium on Monday night. But before a three-hour, 35-minute rain delay put a hold on the game in the top of the ninth inning, one fan spotted in the top of the sixth found a unique way to deal with the weather. 

Either he was hoping to keep his 'do dry, or he was protecting his brain from alien mind control. But if that was the case, it was probably unnecessary. After all, didn't the documentary "Signs" teach us that aliens hate Earth water?
The Yankees would fall to the Rangers, 9-6, after the game resumed. It might have been a disappointing night in Bronx, but at least there were no extraterrestrial invasions.